---
product_id: 225754972
title: "Prime-Grade Silica Wafers (Silicon Substrate and Dry Oxide Layers) (4'', 525 um Silicon and 200 nm Dry Silica, Qty: 10)"
brand: "alpha nanotech"
price: "₨239042"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/225754972-prime-grade-silica-wafers-silicon-substrate-and-dry-oxide-layers
store_origin: LK
region: Sri Lanka
---

# TIR < 3 μm ultra-flat precision Surface roughness < 0.5 nm atomic smoothness Thickness 525 μm ± 20 μm exactness Prime-Grade Silica Wafers (Silicon Substrate and Dry Oxide Layers) (4'', 525 um Silicon and 200 nm Dry Silica, Qty: 10)

**Brand:** alpha nanotech
**Price:** ₨239042
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your semiconductor game with precision-engineered prime-grade wafers!

## Quick Answers

- **What is this?** Prime-Grade Silica Wafers (Silicon Substrate and Dry Oxide Layers) (4'', 525 um Silicon and 200 nm Dry Silica, Qty: 10) by alpha nanotech
- **How much does it cost?** ₨239042 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/225754972-prime-grade-silica-wafers-silicon-substrate-and-dry-oxide-layers)

## Best For

- alpha nanotech enthusiasts

## Why This Product

- Trusted alpha nanotech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready-to-Use Packaging:** Includes gel membrane boxes or wafer carriers for secure handling and contamination-free storage—because your innovation deserves the best.
- • **Ultra-Precise Flatness:** Total Indicator Reading (TIR) under 3 microns ensures unmatched wafer uniformity for flawless device fabrication.
- • **Consistent Thickness Control:** 525 µm ± 20 µm thickness guarantees reliable layering and integration in high-tech semiconductor processes.
- • **Prime Grade CZ Virgin Silicon:** Premium quality virgin silicon with boron doping and 1-30 Ω resistivity tailored for cutting-edge research and production.
- • **Atomic-Level Surface Smoothness:** Surface roughness below 0.5 nm delivers pristine interfaces critical for next-gen microelectronics.

## Overview

These 4-inch prime-grade CZ virgin silicon wafers feature a 525 µm thickness with ±20 µm tolerance, boron doping (P-type) with 1-30 Ω resistivity, and ultra-flat surfaces (TIR < 3 μm, roughness < 0.5 nm). Both sides have thermal oxide layers, with front side polished and back side etched, making them ideal for advanced semiconductor and nanotech applications. Packaged securely in gel membrane boxes or wafer carriers, they ensure contamination-free handling for professional lab and industrial use.

## Description

Prime/CZ Virgin Grade Silica Substrates Prime/CZ Virgin Grade; Orientation: <100>;  Resistivity: 1-30 Ω;  Type: P/Dopant: Boron; TIR <3 μm, TTV <10 μm, BOW <10 μm, Roughness <0.5 nm;   Available in two formats: 5mm x 5mm diced chips in gel membrane box (25 single-sided polished chips per box) or Single-Side Polished WafersSizes of the Wafers Available: Six Inch 6'' Wafer with a Thickness of 650 µm +/- 20 µm; Four Inch 4'' Wafer with a Thickness of 525 µm +/- 20 µm; Three Inch 3'' Wafer with a Thickness of 400 µm +/- 20 µm;Two Inch 2'' Wafer with a Thickness of 300 µm +/- 15 µm;Gel membrane boxes or wafer carriers are included for every single purchase. For more information, please visit us at https://www.alphananotechne.com/silicon-wafers or send us your questions to info@alphananotechne.com or ask questions directly on the "Have a question?" tab above.

## Features

- Grade: Prime / CZ Virgin
- Orientation: 100
- Type/Dopant: P/Boron, Resistivity: 1-30 Ω
- Front Side Polished, Back Side Etched, Thermal Oxide Layers on Both Sides
- TIR < 3 μm, TTV < 10 μm, BOW < 10 μm, Roughness < 0.5 nm

## Images

![Prime-Grade Silica Wafers (Silicon Substrate and Dry Oxide Layers) (4'', 525 um Silicon and 200 nm Dry Silica, Qty: 10) - Image 1](https://m.media-amazon.com/images/I/81SqBw55CrL.jpg)
![Prime-Grade Silica Wafers (Silicon Substrate and Dry Oxide Layers) (4'', 525 um Silicon and 200 nm Dry Silica, Qty: 10) - Image 2](https://m.media-amazon.com/images/I/91hRD+8qOVL.jpg)

## Available Options

This product comes in different **Style** options.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-09*